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The least common multiple of 18, 21, and 36 is 504. 18 times 28 equals 504. 21 times 24 equals 504. 36 times 14 equals 504.

18 = 2 x 32

21 = 3 x 7

36 = 22 x 32

The LCM of 18, 21, and 36 is 252, since 252 is the product of the highest power of each prime factor of the given numbers (22 x 32 x 7).

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15y ago

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